Why does Ash Ketchum stay 10 Years Old?

Ash Ketchum VA Shares Message Ahead Of Character's Exit From Pokémon Anime

After 22 years, 10-year-old Ash Ketchum is finally a Pokemon Master, Article

If the writers aged Ash in his inevitable return in HZ, does that mean that all of the past series happened in a single year?(art by:@j_cstr on Twitter) : r/pokemonanime

Will McCue on X: A 10 year old with 22 years of experience. Ash is what every employer is looking for now. / X

Is Ash Leaving Pokémon? When Is Ash Ketchum's Final Pokémon Episode?

The Never Ending Question - Why Is It that Ash Ketchum has never aged? - 1487

Pokémon: Ash's Transition Over The Years (In Pictures)

Pokémon confirms the return of Ash and Pikachu… in their own way - Softonic

How Is 'Pokemon's Ash Ketchum Still 10 Years Old?, todos os pokemons do ash

How Old is Ash Ketchum? (Is Ash Still 10?)

Ash Ketchum is the Worst Pokemon Trainer Ever – Objection Network

These Weird Pokemon Theories Try to Explain Why Ash Doesn't Age

Ash Ketchum Catches a Career—or Several—on Pokémon TV

Pokémon: Ash is finally leaving the series after 25 years, fans think